Seiko Cal. 7091 - 721

This Spring Drive model from 1987 features a 42mm Stainless Steel case. It features a Black dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-8956d3037743]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1987

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