Seiko Cal. 6642 - 539

Seiko 6642-539

This Spring Drive model from 1973 features a 35mm Gold-Plated case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-83b911976da5]

Also known as: Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
35mm
Case Thickness
14.5mm
Lug Width
19mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
140m
Dial Color
Blue Sunburst
Jewels
31j
Frequency
36,000 bph
Power Reserve
47 hours
Year
1973

Related Models

seikata-wm-83b911976da5