Seiko Cal. 5218 - 928

The 5218-928 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5218 caliber with 28j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-e7390c26751a]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Silver

Jewels

28j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1995

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