Seiko Cal. 0740 - 712

The Seiko 0740-712 represents an important milestone in Seiko's 1990 lineup. Powered by the 0740 caliber with 17j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-27fd6790bfd2]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1990

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