Seiko Cal. 4431 - 485

The 4431-485 is a sought-after Solar piece from Seiko's golden era. Powered by the 4431 caliber with 31j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-1a437eeb0fcb]

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1971

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