Seiko Cal. 4527 - 436

The 4527-436 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4527 caliber with 21j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-dea95d89052f]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1977

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