Seiko Cal. 6640 - 337

Seiko 6640-337

This Solar model from 1982 features a 43mm PVD Black case. With its 20mm lug width and 13.0mm profile, it sits comfortably on most wrists. [seikata-wm-ba9fbc520b2c]

Specifications

Movement
Solar
Case Material
PVD Black
Case Width
43mm
Case Thickness
13.0mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
50m
Dial Color
Burgundy
Jewels
29j
Frequency
21,600 bph
Power Reserve
58 hours
Year
1982

Related Models

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