Seiko Cal. 4439 - 660

This Spring Drive model from 1986 features a 39mm Two-Tone case. Powered by the 4439 caliber with 24j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-b6bb5a609145]

Also known as: Silverwave, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1986

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