Seiko Cal. 6645 - 631

Seiko 6645-631

This Solar model from 1975 features a 40mm Two-Tone case. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-aee52b4c7d2e]

Also known as: World Timer, Sea Horse

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
40mm
Case Thickness
9.7mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
60m
Dial Color
Silver
Jewels
23j
Frequency
28,800 bph
Power Reserve
53 hours
Year
1975

Related Models

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