Seiko Cal. 4540 - 671

This Hand-Winding model from 1969 features a 41mm Two-Tone case. Powered by the 4540 caliber with 27j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-cc5240da8b7c]

Also known as: Shogun

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Cream

Jewels

27j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1969

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