Seiko Cal. 3828 - 764

The 3828-764 is a sought-after Automatic piece from Seiko's golden era. It features a Green dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-afe111b4f25c]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1983

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