Seiko Cal. 5227 - 503

This Hand-Winding model from 1978 features a 40mm PVD Black case. Powered by the 5227 caliber with 36j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-1b2c7ecd5961]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1978

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