Seiko Cal. 4438 - 475

The Seiko 4438-475 represents an important milestone in Seiko's 1985 lineup. Powered by the 4438 caliber with 22j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-f7d8f1dc9f6d]

Also known as: Monster, Shogun

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

14.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Champagne

Jewels

22j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1985

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