Seiko Cal. 6631 - 354

Seiko 6631-354

The 6631-354 is a sought-after Automatic piece from Seiko's golden era. It features a Burgundy dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-45e180e726c3]

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
40mm
Case Thickness
11.3mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
140m
Dial Color
Burgundy
Jewels
32j
Frequency
28,800 bph
Power Reserve
60 hours
Year
1977

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seikata-wm-45e180e726c3