Seiko Cal. 6648 - 764

This Automatic model from 1992 features a 45mm Titanium case. Powered by the 6648 caliber with 28j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-ea2c2fe1237c]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1992

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