Seiko Cal. 6252 - 643

The Seiko 6252-643 represents an important milestone in Seiko's 1977 lineup. Powered by the 6252 caliber with 23j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-5724996aea2d]

Also known as: Bullhead, Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1977

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