Seiko Cal. 0773 - 637

The Seiko 0773-637 represents an important milestone in Seiko's 1982 lineup. Powered by the 0773 caliber with 31j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-a9c31fc16be7]

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

Champagne

Jewels

31j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1982

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