Seiko Cal. 0731 - 806

The 0731-806 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 0731 caliber with 19j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-3ed5fc8179c8]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

190m

Dial Color

White

Jewels

19j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1977

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