Seiko Cal. 6231 - 439

This Hand-Winding model from 1990 features a 43mm Stainless Steel case. Powered by the 6231 caliber with 30j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-475e2db5ff93]

Also known as: Monster, Panda

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

12.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Champagne

Jewels

30j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1990

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