Seiko Cal. 6257 - 546

This Automatic model from 1981 features a 45mm Hardlex-Coated Steel case. Powered by the 6257 caliber with 28j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-899279ebdcf4]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1981

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