Seiko Cal. 6643 - 171

Seiko 6643-171

The Seiko 6643-171 represents an important milestone in Seiko's 1977 lineup. It features a Black dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-2842c2d7a281]

Also known as: Turtle, Helmet

Specifications

Movement
Kinetic
Case Material
Gold-Plated
Case Width
42mm
Case Thickness
8.6mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
110m
Dial Color
Black
Jewels
18j
Frequency
36,000 bph
Power Reserve
47 hours
Year
1977

Related Models

seikata-wm-2842c2d7a281