Seiko Cal. 6397 - 478

This Hand-Winding model from 1990 features a 42mm Titanium case. Powered by the 6397 caliber with 23j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-8d0e439a9c08]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

12.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Burgundy

Jewels

23j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1990

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