Seiko Cal. 6643 - 646

The 6643-646 is a sought-after Solar piece from Seiko's golden era. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-2c2dd3ac7a01]

Also known as: Silverwave

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

19j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1998

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