Seiko Cal. 3813 - 307

Seiko 3813-307

The 3813-307 is a sought-after Solar piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-e1ea1c0f5298]

Also known as: Bullhead, Goldfeather

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
8.0mm
Lug Width
20mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
40m
Dial Color
Navy
Jewels
27j
Frequency
28,800 bph
Power Reserve
49 hours
Year
1973

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