Seiko Cal. 6631 - 473

Seiko 6631-473

The 6631-473 is a sought-after Automatic piece from Seiko's golden era. It features a Cream dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-3448e256ba33]

Also known as: Bullhead, Golden Tuna

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
36mm
Case Thickness
12.5mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
30m
Dial Color
Cream
Jewels
31j
Frequency
36,000 bph
Power Reserve
47 hours
Year
1965

Related Models

seikata-wm-3448e256ba33