Seiko Cal. 0731 - 381

The 0731-381 is a sought-after Solar piece from Seiko's golden era. Powered by the 0731 caliber with 19j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-ecac3a804e83]

Also known as: Samurai, UFO

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

43mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Burgundy

Jewels

19j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1982

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