Seiko Cal. 3885 - 831

The 3885-831 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3885 caliber with 19j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-9e3d113e36ff]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

White

Jewels

19j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1970

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