Seiko Cal. 4421 - 313

The 4421-313 is a sought-after Solar piece from Seiko's golden era. Powered by the 4421 caliber with 30j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-9cd87dee4e00]

Also known as: Pogue

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

38mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

White

Jewels

30j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1977

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