Seiko Cal. 5661 - 630

Seiko 5661-630

The 5661-630 is a sought-after Automatic piece from Seiko's golden era. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-a5beb9f4b332]

Also known as: Bellmatic, Golden Tuna

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
38mm
Case Thickness
9.9mm
Lug Width
18mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
110m
Dial Color
Blue Sunburst
Jewels
20j
Frequency
36,000 bph
Power Reserve
41 hours
Year
1991

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