Seiko Cal. 3881 - 763

The Seiko 3881-763 represents an important milestone in Seiko's 1968 lineup. Powered by the 3881 caliber with 21j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-42f389ff33d1]

Also known as: Samurai, Panda

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1968

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