Seiko Cal. 4438 - 284

The 4438-284 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4438 caliber with 30j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-ab2b76c92fd0]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

38mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Champagne

Jewels

30j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1993

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