Seiko Cal. 6637 - 553

Seiko 6637-553

This Automatic model from 1981 features a 34mm Stainless Steel case. With its 22mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-03928f5adad2]

Also known as: Rally

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
13.5mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
60m
Dial Color
Black
Jewels
32j
Frequency
28,800 bph
Power Reserve
57 hours
Year
1981

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