Seiko Cal. 5637 - 775

The Seiko 5637-775 represents an important milestone in Seiko's 1991 lineup. Powered by the 5637 caliber with 32j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-afdc94c4f2ac]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Burgundy

Jewels

32j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1991

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