Seiko Cal. 3880 - 630

The 3880-630 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3880 caliber with 35j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-6abd83d5a978]

Also known as: UFO, Emperor

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

13.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

35j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1986

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