Seiko Cal. 3877 - 660

The Seiko 3877-660 represents an important milestone in Seiko's 1970 lineup. It features a Silver dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-ad5779d717d8]

Also known as: UFO

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

24j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1970

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