Seiko Cal. 4526 - 539

This Spring Drive model from 1965 features a 43mm Two-Tone case. Powered by the 4526 caliber with 26j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-8d9f3e0e9a8c]

Also known as: Helmet, Crown

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Silver

Jewels

26j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1965

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