Seiko Cal. 7115 - 328

This Spring Drive model from 1976 features a 39mm Titanium case. Powered by the 7115 caliber with 36j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-d7a7ea3aac0e]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

70m

Dial Color

Burgundy

Jewels

36j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1976

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