Seiko Cal. 4421 - 724

The Seiko 4421-724 represents an important milestone in Seiko's 1965 lineup. It features a White dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-daa8c14f7293]

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

44mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

White

Jewels

31j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1965

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