Seiko Cal. 0731 - 999

The 0731-999 is a sought-after Quartz piece from Seiko's golden era. Powered by the 0731 caliber with 26j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-4ffcc015b8fb]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Burgundy

Jewels

26j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1975

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