Seiko Cal. 3865 - 877

The Seiko 3865-877 represents an important milestone in Seiko's 1976 lineup. With its 19mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-3a5191773f7a]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Burgundy

Jewels

17j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1976

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