Seiko Cal. 3877 - 229

This Automatic model from 1970 features a 39mm Gold-Plated case. Powered by the 3877 caliber with 23j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-b4b5e52f961a]

Also known as: Tuna, UFO

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

15.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1970

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