Seiko Cal. 3858 - 647

The 3858-647 is a sought-after Solar piece from Seiko's golden era. Powered by the 3858 caliber with 35j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-4fd3b99a0107]

Also known as: Bullhead, World Timer

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

43mm

Case Thickness

8.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Cream

Jewels

35j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1978

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