Seiko Cal. 5242 - 846

The Seiko 5242-846 represents an important milestone in Seiko's 1978 lineup. Powered by the 5242 caliber with 28j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-5d4f79b9e15b]

Also known as: Monster, Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Silver

Jewels

28j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1978

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