Seiko Cal. 0773 - 637

Seiko 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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