Seiko Cal. 4540 - 697

The 4540-697 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4540 caliber with 27j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-66ab2714ce41]

Also known as: Samurai, Shogun

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

190m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1976

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