Seiko Cal. 6263 - 690

This Automatic model from 1971 features a 39mm Stainless Steel case. Powered by the 6263 caliber with 18j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-df7e9285c936]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

White

Jewels

18j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1971

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