Seiko Cal. 3850 - 435

This Spring Drive model from 1993 features a 40mm Hardlex-Coated Steel case. Powered by the 3850 caliber with 21j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-dcd745f76203]

Also known as: UFO, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1993

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