Seiko Cal. 6639 - 201

Seiko 6639-201

This Automatic model from 1976 features a 46mm Two-Tone case. It features a Champagne dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-140146655522]

Also known as: Bullhead, Helmet

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
46mm
Case Thickness
8.5mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
140m
Dial Color
Champagne
Jewels
32j
Frequency
21,600 bph
Power Reserve
71 hours
Year
1976

Related Models

seikata-wm-140146655522