Seiko Cal. 5639 - 771

The 5639-771 is a sought-after Solar piece from Seiko's golden era. It features a Navy dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-33e34848b10e]

Also known as: Panda

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

39mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1971

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