Seiko Cal. 3878 - 789

This Hand-Winding model from 1987 features a 39mm Hardlex-Coated Steel case. It features a Champagne dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-32e2f2edaae0]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Champagne

Jewels

17j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1987

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