Seiko Cal. 5231 - 490

This Quartz model from 1997 features a 37mm PVD Black case. Powered by the 5231 caliber with 23j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-4f0b89e92263]

Also known as: Bellmatic

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

23j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1997

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