Seiko Cal. 5681 - 687

Seiko 5681-687

The Seiko 5681-687 represents an important milestone in Seiko's 1971 lineup. It features a White dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-f0fca46144fe]

Also known as: Turtle, Baby Tuna

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
35mm
Case Thickness
9.8mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
100m
Dial Color
White
Jewels
34j
Frequency
36,000 bph
Power Reserve
44 hours
Year
1971

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