Seiko Cal. 3831 - 923

The 3831-923 is a sought-after Solar piece from Seiko's golden era. Powered by the 3831 caliber with 27j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-6856c4a4cfe5]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

10.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1972

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