Seiko Cal. 0731 - 950

The 0731-950 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 0731 caliber with 19j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-be83fb091b67]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Green

Jewels

19j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1978

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