Seiko Cal. 3866 - 795

This Spring Drive model from 1996 features a 37mm Two-Tone case. With its 20mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-a5135b0713f7]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

White

Jewels

28j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1996

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