Seiko Cal. 5639 - 979

The 5639-979 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Silver dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-da1361ff499c]

Also known as: Navigator

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Silver

Jewels

32j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1999

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