Seiko Cal. 7157 - 505

The 7157-505 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7157 caliber with 27j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-01a452a3a52d]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Silver

Jewels

27j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1968

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