Seiko Cal. 4510 - 851

The Seiko 4510-851 represents an important milestone in Seiko's 1968 lineup. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-bbf58092ec6f]

Also known as: Bellmatic, Arnie

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

31j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1968

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