Seiko Cal. 6257 - 630

The 6257-630 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6257 caliber with 26j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-c5d4ab0dea07]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

14.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Burgundy

Jewels

26j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1965

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