Seiko Cal. 3839 - 636

Released in 1974, the Cal. 3839 with design code 636 was part of Seiko's domestic market collection. It features a Silver dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-563f8af8bf35]

Also known as: Monster, Sumo

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1974

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