Seiko Cal. 6688 - 778

Seiko 6688-778

The 6688-778 is a sought-after Automatic piece from Seiko's golden era. It features a Champagne dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-1c4c7733f90f]

Also known as: Tuna, Golden Tuna

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
43mm
Case Thickness
13.6mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
90m
Dial Color
Champagne
Jewels
32j
Frequency
21,600 bph
Power Reserve
38 hours
Year
1989

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