Seiko Cal. 5687 - 144

Seiko 5687-144

This Solar model from 1977 features a 40mm Titanium case. Powered by the 5687 caliber with 21j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-5f80f5ab7dbe]

Specifications

Movement
Solar
Case Material
Titanium
Case Width
40mm
Case Thickness
8.9mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
50m
Dial Color
Silver
Jewels
21j
Frequency
36,000 bph
Power Reserve
66 hours
Year
1977

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