Seiko Cal. 3840 - 356

The Seiko 3840-356 represents an important milestone in Seiko's 1970 lineup. It features a Silver dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-fdcc20a3b489]

Also known as: Bellmatic, Crown

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Silver

Jewels

22j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1970

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