Seiko Cal. 6637 - 706

The Seiko 6637-706 represents an important milestone in Seiko's 1982 lineup. It features a Champagne dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-42cc2aae12d9]

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1982

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