Seiko Cal. 6310 - 685

This Spring Drive model from 1978 features a 40mm Stainless Steel case. With its 21mm lug width and 12.8mm profile, it sits comfortably on most wrists. [seikata-wm-17ec093c3634]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Cream

Jewels

23j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1978

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