Seiko Cal. 4527 - 971

The 4527-971 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4527 caliber with 25j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-2145fdd92534]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

44mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1995

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