Seiko Cal. 3840 - 340

The 3840-340 is a sought-after Solar piece from Seiko's golden era. It features a Green dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-b9abe2a40d07]

Also known as: Helmet, Rally

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Green

Jewels

20j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1966

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