Seiko Cal. 3864 - 840

The 3864-840 is a sought-after Automatic piece from Seiko's golden era. It features a Champagne dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-ee96481ccd55]

Also known as: Helmet, Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Champagne

Jewels

25j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1975

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