Seiko Cal. 5637 - 988

Seiko 5637-988

The 5637-988 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5637 caliber with 28j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-70653dcf82aa]

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
13.6mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
Green
Jewels
28j
Frequency
21,600 bph
Power Reserve
52 hours
Year
1979

Related Models

seikata-wm-70653dcf82aa