Seiko Cal. 4455 - 911

This Spring Drive model from 1981 features a 44mm Hardlex-Coated Steel case. Powered by the 4455 caliber with 35j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-45ccd01015cc]

Also known as: Tuna, Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

White

Jewels

35j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1981

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