Seiko Cal. 5653 - 616

The Seiko 5653-616 represents an important milestone in Seiko's 1973 lineup. It features a Black dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-6e4afa27f8f8]

Also known as: Bullhead, Navigator

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1973

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