Seiko Cal. 0731 - 676

The 0731-676 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0731 caliber with 20j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-c4ef36bca183]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1965

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