Seiko Cal. 5613 - 538

This Spring Drive model from 1982 features a 40mm PVD Black case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-59790fd0627b]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

8.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1982

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