Seiko Cal. 6642 - 683

This Quartz model from 1980 features a 41mm Hardlex-Coated Steel case. Powered by the 6642 caliber with 28j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-5b87613d56fe]

Also known as: Monster

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

13.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

30m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1980

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