Seiko Cal. 5257 - 632

The 5257-632 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5257 caliber with 24j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-3ec11ab2c969]

Also known as: Monster, Navigator

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

14.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

White

Jewels

24j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1978

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