Seiko Cal. 5618 - 621

The 5618-621 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5618 caliber with 23j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-90a237ccd503]

Also known as: Tuna, World Timer

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1986

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