San Martin San Martin Vintage NH34 GMT SN005
$287Discontinued
Case
- Diameter
- 40mm
- Thickness
- 13mm
- Lug width
- 20mm
- Material
- Stainless Steel
- Water resistance
- 200m
Crystal & dial
- Crystal
- Sapphire
Movement
- Caliber
- Seiko NH34
- Type
- Automatic
Seiko
A Seiko (TMI / Seiko Instruments) automatic GMT caliber — the export-market designation of the Seiko 4R34 — that adds a 24-hour fourth hand to the NH35 / 4R35 base. It runs at 21,600 vph with about 41 hours of power reserve, hacks and hand-winds, and has become the default affordable GMT for microbrands.
Design language
- Case shape
- round
- Dial style
- matte
- Bezel
- gmt
- Bracelet
- lug-attached
- Hands
- baton
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2 colorways
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Retail$287
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The San Martin Vintage NH34 GMT SN005 draws broad owner appreciation for its fit and finish—specifically the smooth crown action, well-executed Bakelite-style bezel, and Seiko NH34 movement running only a few seconds fast daily. The on-the-fly adjustable clasp improves daily wearability, and owners praise its bold vintage Tudor-like aesthetic and color treatment. However, the case carries real ergonomic drawbacks: it wears substantially larger than its 40mm spec (closer to 42mm), the razor-sharp 90-degree bottom edge digs uncomfortably into the wrist, and the extreme flatness compounds the issue. Owners also report uneven lume application across hour markers, weak hand lume, and a bezel that feels imprecise and falls out of alignment easily—paired with 12-6-9 marker misalignment. Overall, the San Martin Vintage NH34 GMT SN005 wins owners over for its finishing quality and daily-wear clasp, but the sharp case edges and lume inconsistencies are genuine comfort and leg
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