Seiko Cal. 4451 - 340

The Seiko 4451-340 represents an important milestone in Seiko's 1972 lineup. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-2868a3aff921]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

13.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1972

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