Seiko Cal. 5637 - 915

The 5637-915 is a sought-after Automatic piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-f15c9f1db7a9]

Also known as: Flighty

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1970

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