Seiko Cal. 3866 - 100

Released in 1988, the Cal. 3866 with design code 100 was part of Seiko's domestic market collection. Powered by the 3866 caliber with 25j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-b508cbfe874a]

Also known as: UFO

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

46mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Green

Jewels

25j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1988

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