Seiko Cal. 6388 - 623

Seiko 6388-623

The 6388-623 is a sought-after Quartz piece from Seiko's golden era. It features a Silver dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-0cc780cc39c5]

Also known as: Tuna, Helmet

Specifications

Movement
Quartz
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
14.6mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Silver
Jewels
17j
Frequency
36,000 bph
Power Reserve
56 hours
Year
1965

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