Seiko Cal. 3840 - 931

The 3840-931 is a sought-after Solar piece from Seiko's golden era. Powered by the 3840 caliber with 19j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-12234e31eab6]

Also known as: Panda

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

13.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Burgundy

Jewels

19j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1972

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