Seiko Cal. 6643 - 131

The 6643-131 is a sought-after Solar piece from Seiko's golden era. It features a Burgundy dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-5d0da0e5764f]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

45mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Burgundy

Jewels

25j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1989

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