Seiko Cal. 6643 - 302

The Seiko 6643-302 represents an important milestone in Seiko's 1978 lineup. It features a Burgundy dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-73ffb0cc8427]

Also known as: Rally, Silverwave

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

43mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Burgundy

Jewels

25j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1978

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