Seiko Cal. 5641 - 680

The 5641-680 is a sought-after Quartz piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-2d629ab7456a]

Also known as: Emperor

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Black

Jewels

26j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1975

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