Seiko Cal. 5270 - 103

The Seiko 5270-103 represents an important milestone in Seiko's 1978 lineup. It features a Black dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-4c2ce9bf92ca]

Also known as: Tuna, Emperor

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

14.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1978

Related Models

• Seiko 5238-253
• Seiko 6112-221
• Seiko 5298-250
• Seiko 3862-820
• Seiko 6259-270
• Seiko 7130-324
• Seiko 5237-379
• Seiko 7014-160
• Seiko 5255-319
• Seiko 6187-987
• Seiko 4458-693
• Seiko 6629-411