Seiko Cal. 5242 - 370

The 5242-370 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5242 caliber with 30j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-b27813a3a03a]

Also known as: Monster, Shogun

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1986

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