Seiko Cal. 5687 - 376

Seiko 5687-376

The 5687-376 is a sought-after Solar piece from Seiko's golden era. Powered by the 5687 caliber with 21j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-4f2b9091ca7d]

Also known as: Tuna

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
10.3mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
170m
Dial Color
Champagne
Jewels
21j
Frequency
28,800 bph
Power Reserve
43 hours
Year
1982

Related Models

seikata-wm-4f2b9091ca7d