Seiko Cal. 5251 - 431

The Seiko 5251-431 represents an important milestone in Seiko's 1986 lineup. Powered by the 5251 caliber with 33j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-d44d3181837a]

Also known as: Sumo, Pogue

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1986

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