Seiko Cal. 3877 - 742

This Hand-Winding model from 1977 features a 41mm PVD Black case. It features a Cream dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-515d9256fdae]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Cream

Jewels

36j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1977

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