Seiko Cal. 3874 - 905

This Solar model from 1966 features a 39mm Two-Tone case. Powered by the 3874 caliber with 24j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-a04028174279]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

39mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

24j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1966

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