Seiko Cal. 5618 - 377

The Seiko 5618-377 represents an important milestone in Seiko's 1974 lineup. Powered by the 5618 caliber with 22j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-7a3196c3ecc8]

Also known as: Helmet, Emperor

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

22j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1974

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