Seiko Cal. 3891 - 702

Seiko 3891-702

The 3891-702 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Burgundy dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-48c87e2f328a]

Also known as: Tuna, Bellmatic

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
45mm
Case Thickness
13.7mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Burgundy
Jewels
19j
Frequency
36,000 bph
Power Reserve
66 hours
Year
1973

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