Seiko Cal. 4453 - 233

This Spring Drive model from 1973 features a 43mm Hardlex-Coated Steel case. Powered by the 4453 caliber with 30j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-b03b5d9fb71a]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

9.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1973

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