Seiko Cal. 7183 - 497

This Hand-Winding model from 1974 features a 44mm Hardlex-Coated Steel case. Powered by the 7183 caliber with 25j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-9526ffa191da]

Also known as: Helmet, Navigator

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Champagne

Jewels

25j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1974

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