Seiko Cal. 5618 - 327

Released in 1987, the Cal. 5618 with design code 327 was part of Seiko's domestic market collection. Powered by the 5618 caliber with 23j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-d9511afe3287]

Also known as: Sumo, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

23j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1987

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