Seiko Cal. 5637 - 443

This Quartz model from 1989 features a 45mm Two-Tone case. Powered by the 5637 caliber with 18j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-e72357633cc9]

Also known as: Turtle, UFO

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

45mm

Case Thickness

11.4mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1989

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