Seiko Cal. 3850 - 340

The 3850-340 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3850 caliber with 23j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-63531bf63439]

Also known as: Bullhead, Crown

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

15.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1983

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