Seiko Cal. 6643 - 780

The 6643-780 is a sought-after Automatic piece from Seiko's golden era. It features a Green dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-bfdd6e6f3c13]

Also known as: Panda, Golden Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

8.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1999

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