Seiko Cal. 5678 - 637

Seiko 5678-637

The 5678-637 is a sought-after Solar piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-592465275573]

Also known as: Navigator

Specifications

Movement
Solar
Case Material
Stainless Steel
Case Width
46mm
Case Thickness
15.7mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
120m
Dial Color
Black
Jewels
30j
Frequency
21,600 bph
Power Reserve
37 hours
Year
1987

Related Models

seikata-wm-592465275573