Seiko Cal. 6643 - 161

Released in 1984, the Cal. 6643 with design code 161 was part of Seiko's domestic market collection. The Coin-Edge bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-c1faf7907deb]

Also known as: Sumo, Bullhead

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

13.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1984

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