Seiko Cal. 6642 - 877

This Hand-Winding model from 1978 features a 46mm Hardlex-Coated Steel case. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-93c9c385988d]

Also known as: Bellmatic, Arnie

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

11.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Champagne

Jewels

23j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1978

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