Seiko Cal. 5648 - 918

The Seiko 5648-918 represents an important milestone in Seiko's 1977 lineup. The Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-3e38bc29c504]

Also known as: Sumo, Shogun

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

19j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1977

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