Seiko Cal. 4527 - 391

This Spring Drive model from 1966 features a 36mm Gold-Plated case. Powered by the 4527 caliber with 28j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-e5b742c5d3d5]

Also known as: Samurai, Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

White

Jewels

28j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1966

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