Seiko Cal. 4491 - 610

The Seiko 4491-610 represents an important milestone in Seiko's 1977 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-5779653c1d5c]

Also known as: Emperor

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

12.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1977

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