Seiko Cal. 7148 - 340

This Automatic model from 1978 features a 40mm Titanium case. Powered by the 7148 caliber with 17j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-d7845597f207]

Also known as: Silverwave, Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1978

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