Seiko Cal. 3890 - 785

The 3890-785 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3890 caliber with 21j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-7db38847e0d5]

Also known as: Sumo, Flighty

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

35mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1973

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