Seiko Cal. 4437 - 875

The 4437-875 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4437 caliber with 24j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-27d36deff3f9]

Also known as: Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

38mm

Case Thickness

14.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

24j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1970

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