Seiko Cal. 3840 - 592

Released in 1967, the Cal. 3840 with design code 592 was part of Seiko's domestic market collection. It features a Burgundy dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-b69d965866e2]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

22j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1967

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