Seiko Cal. 6688 - 684

Seiko 6688-684

This Automatic model from 1973 features a 35mm Hardlex-Coated Steel case. It features a Silver dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-af4c36def77f]

Also known as: Bullhead, Silverwave

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
14.9mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
30m
Dial Color
Silver
Jewels
36j
Frequency
36,000 bph
Power Reserve
51 hours
Year
1973

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