Seiko Cal. 5646 - 754

The Seiko 5646-754 represents an important milestone in Seiko's 1985 lineup. With its 22mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-a91217e9e35e]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

14.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1985

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