Seiko Cal. 4531 - 764

This Spring Drive model from 1995 features a 42mm Stainless Steel case. It features a Black dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-ce96b55dcd3a]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Black

Jewels

19j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1995

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