Seiko Cal. 5628 - 644

Seiko 5628-644

The 5628-644 is a sought-after Solar piece from Seiko's golden era. The Fixed bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-7d4f8438215e]

Also known as: Helmet, Crown

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
37mm
Case Thickness
8.1mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
100m
Dial Color
Cream
Jewels
36j
Frequency
28,800 bph
Power Reserve
56 hours
Year
1968

Related Models

seikata-wm-7d4f8438215e