Seiko Cal. 3877 - 680

The 3877-680 is a sought-after Quartz piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-554fa329483f]

Also known as: UFO, Rally

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

10.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1971

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