Seiko Cal. 7136 - 285

The Seiko 7136-285 represents an important milestone in Seiko's 1972 lineup. Powered by the 7136 caliber with 23j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-948530384b13]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

White

Jewels

23j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1972

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