Seiko Cal. 3874 - 635

This Automatic model from 1974 features a 43mm Two-Tone case. It features a Navy dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-af91a0243206]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

43mm

Case Thickness

13.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Navy

Jewels

22j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1974

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