Seiko Cal. 5635 - 527

The 5635-527 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-5da1e5906089]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1980

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