Seiko Cal. 3840 - 727

This Quartz model from 1966 features a 46mm Stainless Steel case. It features a Cream dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-61637f6515b3]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

14.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Cream

Jewels

24j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1966

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