Seiko Cal. 4437 - 454

Released in 1977, the Cal. 4437 with design code 454 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-c2201efc20ad]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

8.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1977

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