Seiko Cal. 4450 - 649

The Seiko 4450-649 represents an important milestone in Seiko's 1976 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-6b5f878df4f3]

Also known as: Helmet, Crown

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

8.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1976

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