Seiko Cal. 4437 - 333

Released in 1965, the Cal. 4437 with design code 333 was part of Seiko's domestic market collection. With its 20mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-a7bb370ca0b6]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Green

Jewels

26j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1965

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