Seiko Cal. 6643 - 648

Seiko 6643-648

This Hand-Winding model from 1989 features a 44mm Gold-Plated case. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-c8672fc28db2]

Also known as: Golden Tuna

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
44mm
Case Thickness
14.4mm
Lug Width
20mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
80m
Dial Color
White
Jewels
28j
Frequency
28,800 bph
Power Reserve
52 hours
Year
1989

Related Models

seikata-wm-c8672fc28db2