Seiko Cal. 5645 - 171

The Seiko 5645-171 represents an important milestone in Seiko's 1976 lineup. Powered by the 5645 caliber with 18j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-90d6ad074b98]

Also known as: Shogun, Helmet

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1976

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