Seiko Cal. 5646 - 759

The Seiko 5646-759 represents an important milestone in Seiko's 1977 lineup. Powered by the 5646 caliber with 29j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-4e241da48bc6]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Navy

Jewels

29j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1977

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