Seiko Cal. 4450 - 721

The Seiko 4450-721 represents an important milestone in Seiko's 1971 lineup. It features a Silver dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-ad00867fceb2]

Also known as: Rally, Golden Tuna

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

15.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

25j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1971

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