Seiko Cal. 6121 - 729

The Seiko 6121-729 represents an important milestone in Seiko's 1969 lineup. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-09fb4fefb37c]

Also known as: Bellmatic, Crown

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Champagne

Jewels

20j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1969

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