Seiko Cal. 4527 - 856

This Spring Drive model from 1979 features a 45mm Gold-Plated case. Powered by the 4527 caliber with 23j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-070da31dbdd5]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

15.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

110m

Dial Color

White

Jewels

23j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1979

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