Seiko Cal. 6638 - 325

Released in 1984, the Cal. 6638 with design code 325 was part of Seiko's domestic market collection. It features a Black dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-f64fc9ba1186]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1984

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