Seiko Cal. 5645 - 800

The Seiko 5645-800 represents an important milestone in Seiko's 1972 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-9dfd6086611c]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1972

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