Seiko Cal. 3870 - 654

The Seiko 3870-654 represents an important milestone in Seiko's 1995 lineup. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-2696b1ba8fec]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

14.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1995

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