Seiko Cal. 6641 - 430

The 6641-430 is a sought-after Quartz piece from Seiko's golden era. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-5c77dcebb2ab]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1975

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