Seiko Cal. 3864 - 777

Released in 1992, the Cal. 3864 with design code 777 was part of Seiko's domestic market collection. With its 22mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-35ad5feb271c]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

36mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Green

Jewels

22j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1992

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