Seiko Cal. 6640 - 229

The 6640-229 is a sought-after Quartz piece from Seiko's golden era. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-9222aea4cd3f]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1994

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