Seiko Cal. 5687 - 820

This Solar model from 1970 features a 44mm PVD Black case. It features a Silver dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-bca764d57e00]

Also known as: Silverwave, Navigator

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

44mm

Case Thickness

14.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Silver

Jewels

31j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1970

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