Seiko Cal. 6680 - 313

The 6680-313 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6680 caliber with 21j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-89102b187bfc]

Also known as: Monster, Sumo

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1966

Related Models

• Seiko 4511-608
• Seiko 6229-779
• Seiko 4448-291
• Seiko 6313-979
• Seiko 4598-872
• Seiko 7030-527
• Seiko 7061-422
• Seiko 0756-399
• Seiko 5262-760
• Seiko 5252-883
• Seiko 0763-338
• Seiko 3889-232