Seiko Cal. 4437 - 975

Released in 1980, the Cal. 4437 with design code 975 was part of Seiko's domestic market collection. It features a Cream dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-360d57eb2cef]

Also known as: Tuna, Flighty

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Cream

Jewels

18j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1980

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