Seiko Cal. 0749 - 664

This Spring Drive model from 1973 features a 36mm Titanium case. Powered by the 0749 caliber with 25j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-d5cf44ab65fc]

Also known as: Tuna, Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

25j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1973

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