Seiko Cal. 5638 - 350

Seiko 5638-350

This Quartz model from 1967 features a 44mm PVD Black case. Powered by the 5638 caliber with 32j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-a0a52223c9dd]

Also known as: Sumo

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
44mm
Case Thickness
9.5mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
180m
Dial Color
Champagne
Jewels
32j
Frequency
28,800 bph
Power Reserve
58 hours
Year
1967

Related Models

seikata-wm-a0a52223c9dd