Seiko Cal. 4531 - 336

The 4531-336 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4531 caliber with 31j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-fdd24af66b7b]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1989

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