Seiko Cal. 3840 - 770

Seiko 3840-770

The 3840-770 is a sought-after Automatic piece from Seiko's golden era. It features a Navy dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-f1672c1853b8]

Also known as: World Timer

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
46mm
Case Thickness
12.1mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
200m
Dial Color
Navy
Jewels
32j
Frequency
21,600 bph
Power Reserve
47 hours
Year
1969

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