Seiko Cal. 6283 - 600

This Spring Drive model from 1977 features a 40mm Hardlex-Coated Steel case. It features a Cream dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-1ebcaed2e881]

Also known as: Sumo, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Cream

Jewels

23j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1977

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