Seiko Cal. 5237 - 139

The Seiko 5237-139 represents an important milestone in Seiko's 1975 lineup. Powered by the 5237 caliber with 23j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-c09a2885a792]

Also known as: Panda

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1975

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