Seiko Cal. 3840 - 756

Released in 1968, the Cal. 3840 with design code 756 was part of Seiko's domestic market collection. It features a Champagne dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-4718543c9855]

Also known as: World Timer, Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

70m

Dial Color

Champagne

Jewels

31j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1968

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