Seiko Cal. 6644 - 721

Seiko 6644-721

This Solar model from 1966 features a 44mm PVD Black case. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-d9332309135c]

Also known as: Monster

Specifications

Movement
Solar
Case Material
PVD Black
Case Width
44mm
Case Thickness
8.6mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
80m
Dial Color
Blue Sunburst
Jewels
24j
Frequency
21,600 bph
Power Reserve
59 hours
Year
1966

Related Models

seikata-wm-d9332309135c