Seiko Cal. 3840 - 837

The 3840-837 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-27c73e0060e2]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

28j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1971

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