Seiko Cal. 5618 - 539

The 5618-539 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5618 caliber with 23j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-bc8f8f269d21]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

38mm

Case Thickness

8.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Burgundy

Jewels

23j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1984

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