Seiko Cal. 6640 - 795

The 6640-795 is a sought-after Hand-Winding piece from Seiko's golden era. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-4256acf32dd9]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Navy

Jewels

22j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1968

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