Seiko Cal. 4527 - 143

The 4527-143 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4527 caliber with 32j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-20b1d58ab56b]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1978

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