Seiko Cal. 3858 - 504

This Spring Drive model from 1981 features a 39mm Two-Tone case. Powered by the 3858 caliber with 23j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-48c78a29ccd6]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1981

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