Seiko Cal. 0731 - 761

The Seiko 0731-761 represents an important milestone in Seiko's 1990 lineup. Powered by the 0731 caliber with 17j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-6fd3a28b7b60]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

40m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1990

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