Seiko Cal. 6643 - 593

The 6643-593 is a sought-after Automatic piece from Seiko's golden era. It features a Green dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-61d79f39565b]

Also known as: Golden Tuna, Flighty

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1977

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