Seiko Cal. 6157 - 901

The Seiko 6157-901 represents an important milestone in Seiko's 1967 lineup. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-8dd8cd66c9db]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1967

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