Seiko Cal. 5630 - 391

The 5630-391 is a sought-after Spring Drive piece from Seiko's golden era. It features a Cream dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-c0db71215b7f]

Also known as: UFO, Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

Cream

Jewels

36j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1974

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