Seiko Cal. 0731 - 850

The Seiko 0731-850 represents an important milestone in Seiko's 1986 lineup. Powered by the 0731 caliber with 35j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-31f839e7110c]

Also known as: Samurai, Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Champagne

Jewels

35j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1986

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