Seiko Cal. 3897 - 137

The Seiko 3897-137 represents an important milestone in Seiko's 1972 lineup. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-2aba6e0b8545]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

36mm

Case Thickness

12.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1972

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