Seiko Cal. 0740 - 747

This Spring Drive model from 1975 features a 35mm Hardlex-Coated Steel case. Powered by the 0740 caliber with 29j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-97d5a546572b]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

White

Jewels

29j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1975

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