Seiko Cal. 6637 - 583

Seiko 6637-583

The 6637-583 is a sought-after Hand-Winding piece from Seiko's golden era. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-2db30d262439]

Also known as: Turtle, Sumo

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
40mm
Case Thickness
15.6mm
Lug Width
21mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
120m
Dial Color
Blue Sunburst
Jewels
27j
Frequency
36,000 bph
Power Reserve
54 hours
Year
1999

Related Models

seikata-wm-2db30d262439