Seiko Cal. 4485 - 105

This Spring Drive model from 1978 features a 41mm Hardlex-Coated Steel case. Powered by the 4485 caliber with 36j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-cb0f89a1ea8c]

Also known as: Tuna, Silverwave

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

14.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Cream

Jewels

36j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1978

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