Seiko Cal. 6623 - 687

Seiko 6623-687

This Spring Drive model from 1969 features a 41mm Hardlex-Coated Steel case. It features a White dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-caeb8e8afc79]

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
8.2mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
170m
Dial Color
White
Jewels
27j
Frequency
28,800 bph
Power Reserve
52 hours
Year
1969

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