Seiko Cal. 3858 - 121

The 3858-121 is a sought-after Kinetic piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-6b435af6aec5]

Also known as: Sumo

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1977

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