San Martin San Martin NH34 BB58 GMT SN0109G2
$329Sold out
Case
- Diameter
- 39mm
- Material
- Stainless Steel
- Water resistance
- 100m
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
AI-detected from the product image
4 colorways
The market
Market prices.
Retail$329
No forum listings recorded for this watch yet.
The connection engine
More like this.
The community take
Owners talk.
The San Martin NH34 BB58 GMT SN0109G2 earns strong owner enthusiasm for its premium feel, Pepsi dial execution, and value under £200, with multiple owners praising its solid build quality, scratch-resistant sapphire glass, and crisp, play-free bezel action. Accuracy ranges from +2–3 sec/day when worn to +6 sec/day static, typical of the NH34's broad movement tolerances; owners note bidirectional bezel action with two clicks per hour and a notably light case feel compared to heavier competitors. Some owners flag bezel insert tolerance gaps and lume similarity between the seconds and GMT hands that can reduce darkness readability, while GMT hand alignment on the NH34 can vary between examples, occasionally requiring adjustment. Overall, owners rate the San Martin NH34 BB58 GMT exceptionally highly for its Pepsi dial quality and premium-feeling build at the price point.
Open the discussion
On real wrists
No shots yet. Show how it wears.
The paper trail
The discussion