Seiko Cal. 6642 - 685

Seiko 6642-685

The Seiko 6642-685 represents an important milestone in Seiko's 1973 lineup. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-39b6d4d688d6]

Also known as: Tuna, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
35mm
Case Thickness
13.0mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
130m
Dial Color
Green
Jewels
22j
Frequency
28,800 bph
Power Reserve
49 hours
Year
1973

Related Models

seikata-wm-39b6d4d688d6