Seiko Cal. 4420 - 177

The Seiko 4420-177 represents an important milestone in Seiko's 1982 lineup. Powered by the 4420 caliber with 34j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-3237dce1deee]

Also known as: Pogue

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1982

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