Seiko Cal. 5242 - 390

This Spring Drive model from 1998 features a 36mm Two-Tone case. Powered by the 5242 caliber with 17j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-421634e4754c]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

17j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1998

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