Seiko Cal. 3840 - 410

The 3840-410 is a sought-after Automatic piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-98242d90cd81]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1986

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