Seiko Cal. 4531 - 799

The 4531-799 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4531 caliber with 31j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-221168d8b061]

Also known as: Sumo, Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1993

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