Seiko Cal. 6646 - 757

The Seiko 6646-757 represents an important milestone in Seiko's 1975 lineup. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-fefda876013d]

Also known as: Samurai

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1975

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