Seiko Cal. 6641 - 557

This Automatic model from 1998 features a 35mm Titanium case. Powered by the 6641 caliber with 36j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-6bb0e5d66c26]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

35mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

36j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1998

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