Seiko Cal. 3855 - 853

This Spring Drive model from 1977 features a 40mm Hardlex-Coated Steel case. It features a Navy dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-cbaf6a564880]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1977

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