Seiko Cal. 3890 - 623

The 3890-623 is a sought-after Solar piece from Seiko's golden era. Powered by the 3890 caliber with 24j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-c7c1b710e786]

Also known as: Bullhead, Crown

Specifications

Movement

Solar

Case Material

Titanium

Case Width

42mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Silver

Jewels

24j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1971

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