Seiko Cal. 3847 - 504

The Seiko 3847-504 represents an important milestone in Seiko's 1977 lineup. Powered by the 3847 caliber with 30j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-e313b1f0cbd1]

Also known as: Monster

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1977

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