Seiko Cal. 6638 - 520

Released in 1992, the Cal. 6638 with design code 520 was part of Seiko's domestic market collection. It features a Champagne dial protected by a Hardlex crystal and offers 160m of water resistance. [seikata-wm-6b3cc5eae8b6]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

35mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Champagne

Jewels

29j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1992

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