Seiko Cal. 6633 - 904

This Automatic model from 1979 features a 45mm Titanium case. Powered by the 6633 caliber with 20j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-3da916f4b61d]

Also known as: Samurai, UFO

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1979

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