Seiko Cal. 6681 - 153

Released in 1981, the Cal. 6681 with design code 153 was part of Seiko's domestic market collection. Powered by the 6681 caliber with 35j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-77eaa61332fc]

Also known as: Sumo, Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

35j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1981

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