Seiko Cal. 6646 - 510

Seiko 6646-510

This Quartz model from 1973 features a 42mm Stainless Steel case. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-63125d32768c]

Also known as: Turtle, Bellmatic

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
42mm
Case Thickness
14.5mm
Lug Width
21mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
140m
Dial Color
Black
Jewels
24j
Frequency
28,800 bph
Power Reserve
41 hours
Year
1973

Related Models

seikata-wm-63125d32768c