Seiko Cal. 5639 - 255

Seiko 5639-255

The 5639-255 is a sought-after Spring Drive piece from Seiko's golden era. The Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-bdae7eb6e5ce]

Also known as: Sumo, Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
34mm
Case Thickness
9.9mm
Lug Width
18mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
60m
Dial Color
Black
Jewels
20j
Frequency
28,800 bph
Power Reserve
55 hours
Year
1971

Related Models

seikata-wm-bdae7eb6e5ce