Seiko Cal. 0753 - 380

This Spring Drive model from 1974 features a 40mm Titanium case. Powered by the 0753 caliber with 31j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-2f67ef8d9ffb]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1974

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