Seiko Cal. 5687 - 771

Seiko 5687-771

Released in 1974, the Cal. 5687 with design code 771 was part of Seiko's domestic market collection. It features a Champagne dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-f0a32689c0fd]

Also known as: Golden Tuna

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
13.0mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
150m
Dial Color
Champagne
Jewels
33j
Frequency
21,600 bph
Power Reserve
36 hours
Year
1974

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