Seiko Cal. 5630 - 981

The 5630-981 is a sought-after Automatic piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-32545dd51bbe]

Also known as: Tuna, Crown

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

38mm

Case Thickness

14.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1994

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