Seiko Cal. 6683 - 238

This Quartz model from 1977 features a 37mm PVD Black case. Powered by the 6683 caliber with 21j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-750198dc5b85]

Also known as: Monster, Sportsmatic

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

15.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Silver

Jewels

21j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1977

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