Seiko Prospex

Dampened Seiko perfection in a beautiful case, let down by a micro-adjust clasp that marks its own links.

Gethin's covered this on the channel. The written review and scores are on the way.

One of the best Seikos ever made. Gethin would pick it over the HBF1.

Full review dropping on the channel soon. Gethin's photos are up first.

His favourite watch ever: a mesmerising Zaratsu case and Hi-Beat sweep, Seiko magic incarnate, but it scratches if you look at it and has no bracelet.

A boutique-exclusive champagne two-tone that unexpectedly won his heart: warm, well-finished and rare, though the bezel isn't the best and the clasp is the usual one.

A smart, handsome dress watch with a lovely dial and great value, though a big 42 mm and not Gethin's kind of watch.

A mid-tier Seiko 'paradise': a luxury-feeling case at a mid-tier price, with great bezel action. Gethin loves the Sumos.

Still 'an exceptional time warrior', but he prefers the Gen 2's dial and domed crystal. Only for big wrists.

Excellent value GMT in the Marine Master case, but he hates the dial and clasp and says he would not buy it.

A rad, comfortable little PADI Samurai with a superb green dial that Gethin loves, held back by a so-so stamped clasp; great at 400-450 pounds.

A beautiful 'baby Marine Master' with a stunning case, but he calls it an MM200 with a freaky dial, finds the lume poor, and wouldn't buy it.

A huge, goofy and gorgeous Sumo: casework that beats Rolex and Omega, great comfort, only for big wrists. A real favourite.

A gorgeous, behemoth Samurai with a stunning manta-ray dial, ruined only by a poor bracelet, a cyclops and a grindy crown.

A remarkable-looking, very comfortable and beautifully finished three-hander that Gethin would seriously consider buying, despite disliking the Alpinist.

A very nice, well-made and good-value GMT diver, but Gethin would not buy one: he dislikes GMTs and the Blue Wave dial.

Smart, well-built and in a gorgeous cobalt, but the octagonal bezel isn't for him: he'd wear it to the office, not the beach.

His grail Marinemaster and favourite of the lot: he prefers it to the newer generation and to the SLA047.

A dial that won him over: splendid cave-diver gradient on the proven SLA case and bracelet, though the clasp is the usual letdown.

A well-made, slim and comfortable skin-diver case that Gethin likes but does not love: overpriced at GBP 2,930, with a weak clasp and end-link integration.

High-quality, comfortable, 'wears like an SKX', but he doesn't think it's for him, and the stamped clasp is a sore point at this price.

The black one of the pair, which he slightly prefers: high-quality, comfortable, 'wears like an SKX', but not for him, and the stamped clasp is a sore point.

A stunning, understated purist's diver, the simplest of the four, with casework he calls exceptional.

A niche but beautiful titanium field watch with a bezel feel like nothing else; Gethin loves it but at GBP 2,400 says get rid of it.

Seiko's pinnacle in Gethin's eyes: flawless titanium finishing, a sublime bezel and a fantastic bracelet, all of it unreal.

Gethin's grail: the original Marinemaster 300, which he would take over the SLA023 'all day long'.

The faithful original: top finishing and the best bezel feel of the pair, but the X on the dial and the metal strap keeper annoy him.

The best Seiko he has ever worn: a glimmering anthracite sunburst dial, a Zaratsu skin-diver case and insane comfort, let down by a rubbish bracelet and a limited-edition premium.

One of his favourites: banana case, lacquer bezel with sublime action, slim and comfortable, and a bargain at £500 used.

One of his least favourites: 'an SPB143 on growth hormone' with a silly dial, though still a lovely 8L35 Seiko.

A sublime, glamorous reinterpretation of the Willard: papery charcoal dial, silky ceramic bezel and the same top-tier finishing as the SLA033 for much less.

His favourite watch case ever on a British-racing-green dial, with buttery bezel action, his favourite handset and mental lume. He can't choose between it and his SLA023, and only the painted triangle worries him.

A Turtle he really loves for comfort, let down by a stock rubber strap and a lume sliver he wants gone.

His grail and favourite Marinemaster: an unmatched Zaratsu case, the best bezel action and handset he's ever known and Christmas-tree lume. The Prospex X, the painted triangle and the unregulated movement are the only things stopping it being perfect.

Light as a feather, gorgeous titanium case and one of the comfiest watches he's worn, let down by a skewed chapter ring, a stamped clasp and a fast 6R35. Buy used, not new.

A strange, striking Monster with a wonderful bezel, a midnight-blue dial and supernova lume. Not for everybody, but he quite likes it, though the Gen 2 is still the one to go for.

Not Gethin's favourite: a funny little gap and a strange bezel, though the waffle dial is quite acceptable.

A rare J1 Turtle: rhino thick with an exceptional handset, let down by a crap bracelet.

The Marinemaster 300 'for three times less': same soul, slightly lesser body, and never pay more than £650.

Big but wearable, with a show-stealing waffle dial and a pure-pleasure ceramic bezel. Gethin would wear it proudly, just lose the Cyclops.

Gethin never liked the Tuna until they wore one: a huge watch that wears like a 42, with lume brighter than a Marinemaster and a quartz movement that's 'far from cheap'. The bezel is mushy and there's no bracelet.

Gethin's covered this on the channel. The written review and scores are on the way.

The Gen 2 Blumo with the fat boy font: a banana-case masterpiece that gives you four fifths of a Marinemaster for £500. Bin the bracelet and keep it forever.

A rugged, hefty, proper ISO diver that works perfectly well, but a mushy bezel and a misaligned lume pip make it not Gethin's cup of tea.

An old-school Turtle Gethin rates as a great, comfortable, highly recommended watch, despite a poor bezel and wayward timekeeping. Now Mr Jun's.

An almost perfect watch and one of Seiko's finest masterpieces; not worth £1,100 new, but a steal used at £750-850.

A strange-looking little tool watch he really loves, with a bezel he rates above the 62MAS; let down by the bracelet and the retail price. Buy used, wear on rubber.

Not many negatives: a slim, comfortable, workmanlike Turtle that's a better watch in every way than the big one. Buy it used.

Stunning manta-ray ocean dial and a night-and-day bezel upgrade, let down by the bracelet, the Cyclops and misalignment. Not really for him, but he appreciates the appeal.