Seiko Cal. 4541 - 527

The 4541-527 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4541 caliber with 23j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-f1f0a020ad37]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

39mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1969

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