Seiko Cal. 4437 - 390

Released in 1970, the Cal. 4437 with design code 390 was part of Seiko's domestic market collection. It features a Black dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-1bbc9b8ce4ca]

Also known as: Samurai, Silverwave

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Black

Jewels

32j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1970

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