Seiko Cal. 6646 - 593

Released in 1968, the Cal. 6646 with design code 593 was part of Seiko's domestic market collection. It features a Silver dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-f6cade3dc870]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1968

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