Seiko Cal. 5638 - 668

Seiko 5638-668

The 5638-668 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5638 caliber with 25j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-2de317e1e5d9]

Also known as: Rally

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
9.8mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
180m
Dial Color
Cream
Jewels
25j
Frequency
21,600 bph
Power Reserve
39 hours
Year
1985

Related Models

seikata-wm-2de317e1e5d9