Seiko Cal. 5630 - 907

The 5630-907 is a sought-after Automatic piece from Seiko's golden era. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-542edcb0fa69]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1971

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