Seiko Cal. 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

Related Models

• Seiko 7029-197
• Seiko 5654-733
• Seiko 6684-204
• Seiko 6259-923
• Seiko 7090-183
• Seiko 6219-663
• Seiko 4565-403
• Seiko 5670-286
• Seiko 6227-546
• Seiko 5256-389
• Seiko 5630-605
• Seiko 3891-524