Seiko Cal. 6639 - 807

Released in 1982, the Cal. 6639 with design code 807 was part of Seiko's domestic market collection. It features a Navy dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-9ded62669bf9]

Also known as: Turtle, Rally

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1982

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