Seiko Cal. 4438 - 661

The Seiko 4438-661 represents an important milestone in Seiko's 1983 lineup. Powered by the 4438 caliber with 27j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-8466f3ce0424]

Also known as: Shogun

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1983

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