Seiko Cal. 6639 - 167

Seiko 6639-167

This Spring Drive model from 1972 features a 44mm Two-Tone case. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-e26436219606]

Also known as: Helmet, Crown

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
44mm
Case Thickness
14.2mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Navy
Jewels
22j
Frequency
36,000 bph
Power Reserve
49 hours
Year
1972

Related Models

seikata-wm-e26436219606