Seiko Cal. 5257 - 639

The 5257-639 is a sought-after Hand-Winding piece from Seiko's golden era. With its 22mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-e0dc053fbe42]

Also known as: Turtle, Flighty

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Silver

Jewels

24j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1988

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