Seiko Cal. 4477 - 509

This Kinetic model from 1981 features a 39mm PVD Black case. It features a Navy dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-4d7e6d95093a]

Also known as: Sumo, Crown

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1981

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