Seiko Cal. 3877 - 863

The Seiko 3877-863 represents an important milestone in Seiko's 1970 lineup. The Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-df38f1fd8a27]

Also known as: Samurai, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1970

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