Seiko Cal. 5645 - 971

The Seiko 5645-971 represents an important milestone in Seiko's 1971 lineup. Powered by the 5645 caliber with 34j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-d1238bf86626]

Also known as: Flighty

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1971

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