Seiko Cal. 6646 - 113

The 6646-113 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6646 caliber with 31j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-1f4108a2976c]

Also known as: UFO, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

White

Jewels

31j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1982

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