Seiko Cal. 3851 - 810

This Spring Drive model from 1998 features a 43mm PVD Black case. It features a Silver dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-46993e68d02c]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1998

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