Seiko Cal. 6691 - 422

Seiko 6691-422

The 6691-422 is a sought-after Solar piece from Seiko's golden era. Powered by the 6691 caliber with 18j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-c0e2659cf6d6]

Also known as: Golden Tuna

Specifications

Movement
Solar
Case Material
Titanium
Case Width
44mm
Case Thickness
10.3mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
50m
Dial Color
White
Jewels
18j
Frequency
21,600 bph
Power Reserve
56 hours
Year
1966

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