Seiko Cal. 5645 - 532

The Seiko 5645-532 represents an important milestone in Seiko's 1965 lineup. Powered by the 5645 caliber with 21j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-35d34ba104e4]

Also known as: Tuna, UFO

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

43mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Champagne

Jewels

21j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1965

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