The line-up
- 1
Seiko SLA023 Marinemaster 300
9/10 · Beyond thunderdome · Gethin's ownMine: 44.3mm, 50.5mm lug to lug, not too big, not too small, on a long-linked bracelet a lot of people don't like and I love.
- 2
Seiko SLA047 'Island Green'
9/10 · Beyond thunderdome · Mr Jun (loan)Exceptionally beautiful: a limited edition of 3,000 with a dial Seiko calls Island Green and I call British racing green, picked up a year old for GBP 1,850 on eBay against GBP 3,000 retail.
In his words
"Seiko calls it Island Green, but to me it's British racing green."
▶ Play from 08:00"Best handset in the history of wrist watches."
▶ Play from 09:39"This is not a shopping mall Seiko. It's just not."
▶ Play from 11:44"These are my favourite watches ever."
▶ Play from 14:39More line-ups
See all 43
Round-up18:39
The tiers of Seiko
The tiers of Seiko: from the SKX up to the MM300, one rung at a time
8 watches · 2026-02-14 · 2,250 views
Round-up10:50
Seiko Marinemaster Bonanza Life. SLA019, SLA047, SLA021, SLA023
Marinemaster bonanza life: SLA019, SLA047, SLA021 and SLA023
4 watches · 2025-12-27 · 3,574 views
Head to head10:41
SBDX001 VS SLA023. Similar yet different
SBDX001 vs SLA023: the original Marinemaster shows the new one how it's done
2 watches · 2025-06-14 · 1,151 views
Head to head15:12
Seiko SLA025 VS SLA023
SLA025 vs SLA023: two of the best Seikos ever, and one is beyond Thunderdome
2 watches · 2025-05-24 · 1,610 views