Seiko Cal. 5243 - 370

The Seiko 5243-370 represents an important milestone in Seiko's 1998 lineup. Powered by the 5243 caliber with 21j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-d2d2e150c9ca]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

41mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1998

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