Seiko Cal. 5257 - 537

The Seiko 5257-537 represents an important milestone in Seiko's 1991 lineup. Powered by the 5257 caliber with 31j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-771d8f141667]

Also known as: Shogun, Crown

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

43mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

White

Jewels

31j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1991

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