Seiko Cal. 3840 - 187

The 3840-187 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3840 caliber with 29j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-fad1714ef09e]

Also known as: Pogue

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Cream

Jewels

29j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1975

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