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Raven Custom - 39mm GMT Diver - Storm
Case
- Diameter
- 39mm
- Lug width
- 20mm
- Material
- Ceramic
- Water resistance
- 200m
Crystal & dial
- Crystal
- Sapphire
Movement
- Caliber
- Seiko NH34
- Type
- Automatic
- Hacking
- No
- Hand-winding
- No
- Complications
- Time only
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
- standard
- Bezel
- rotating_unidirectional
- Bracelet
- metal_oyster
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Owners widely praise the Raven Custom - 39mm GMT Diver - Storm for its 39mm case size, legibility, BGW9 lume, and bezel action. One owner found the stock bracelet too simple for the case's finish and preferred an aftermarket option, while another described their Uncle Straps bracelet as "super comfy." The watch is offered at $375 with a 12-month warranty and uses the Seiko NH34 automatic GMT movement. Overall, owners rate the Raven Custom - 39mm GMT Diver - Storm highly for its comfortable wearability and functional GMT complication at the price.
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