Seiko Cal. 4437 - 390

Released in 1972, the Cal. 4437 with design code 390 was part of Seiko's domestic market collection. It features a Silver dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-3df167ea4a9d]

Also known as: Turtle, Sea Horse

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

43mm

Case Thickness

11.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Silver

Jewels

18j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1972

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