Seiko Cal. 6620 - 316

The Seiko 6620-316 represents an important milestone in Seiko's 1985 lineup. Powered by the 6620 caliber with 27j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-d5b710dcde64]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Black

Jewels

27j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1985

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