Seiko Cal. 0740 - 644

Seiko 0740-644

The Seiko 0740-644 represents an important milestone in Seiko's 1997 lineup. It features a White dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-9e16ba6d4298]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement
Solar
Case Material
PVD Black
Case Width
46mm
Case Thickness
15.9mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
70m
Dial Color
White
Jewels
29j
Frequency
28,800 bph
Power Reserve
57 hours
Year
1997

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