Seiko Cal. 3828 - 830

The 3828-830 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-c3d0ddc723e8]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1986

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