Seiko Cal. 7030 - 931

This Spring Drive model from 1987 features a 40mm Stainless Steel case. Powered by the 7030 caliber with 17j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-19a983fa0fd8]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Cream

Jewels

17j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1987

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