Seiko Cal. 6644 - 231

Seiko 6644-231

This Quartz model from 1993 features a 45mm PVD Black case. Powered by the 6644 caliber with 31j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-a65ee2bc3816]

Also known as: Sumo

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
45mm
Case Thickness
12.5mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
50m
Dial Color
Cream
Jewels
31j
Frequency
28,800 bph
Power Reserve
70 hours
Year
1993

Related Models

seikata-wm-a65ee2bc3816